The Outdoor Research Eclipse Sun T-Shirt transforms your warm-weather adventures with serious sun protection that doesn't compromise on comfort. Built with UPF 50+ fabric that blocks 98% of harmful UV rays, this women's hiking shirt keeps you covered during long trail days and sunny runs without the weight of heavy layers. The quick-drying, moisture-wicking construction teams up with ActiveFresh™ odor control technology to keep you feeling fresh whether you're tackling a multi-day backpacking trip or just exploring your local trails. Thanks to its movement-mirroring stretch and relaxed fit, you'll barely notice you're wearing it as you scramble over rocks or push through that final mile, while the chafe-free bonded neckline ensures all-day comfort. Perfect for hikers and runners who refuse to let the sun slow them down, this trail-tested top delivers the technical performance you need with the everyday wearability you want.